isOpen.character {R.utils} | R Documentation |
Checks if there is an open connection in R to a file.
## S3 method for class 'character': isOpen(pathname, rw=c("read", "write"), ...)
pathname |
An character string. |
rw |
A character vector .
If "read" , a file is considered to be open if there exist an
open connection that can read from that file.
If "write" , a file is considered to be open if there exist an
open connection that can write to that file.
Both these values may be specified.
|
... |
Not used. |
Returns TRUE
if there exists a file connection
that is open,
otherwise FALSE
.
Henrik Bengtsson (http://www.braju.com/R/)
See isOpen()
in connections
.
showConnections
().